Re: [PROBLEM] i915/drm: Insufficient FIFO for plane

On Thu, Aug 26, 2010 at 9:27 PM, Maciej Rutecki maciej.rutecki@gmail.com wrote:

On niedziela, 22 sierpnia 2010 o 17:26:19 Pekka Enberg wrote:

...

Hi,

I'm seeing tons of these error messages with current Linus' git:

[   95.941618] [drm:intel_calculate_wm] *ERROR* Insufficient FIFO for plane, expect flickering: entries required = 36, available = 31.

Contrary to the error message, I don't see any flickering. I've attached my dmesg and config.

See: https://bugzilla.kernel.org/show_bug.cgi?id=17021

The "insufficient FIFO for plane" problem seems to have gone away with latest Linus' git. I suppose commit 9559fcdbff4f93d29af04478bbc48294519424f5 ("drm/i915: fix vblank wait test condition") fixed it although I don't see any mention of the error in the changelog?

Pekka